The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
Sep. 29, 2010
Applicants:
Kie Yutaka, Saitama, JP;
Toshinari Miura, Kawasaki, JP;
Shinji Eritate, Kawasaki, JP;
Takeshi Komuro, Tokyo, JP;
Inventors:
Kie Yutaka, Saitama, JP;
Toshinari Miura, Kawasaki, JP;
Shinji Eritate, Kawasaki, JP;
Takeshi Komuro, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 307/68 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a method of producing FDCA by which high-purity FDCA can be produced in high yield. 2,5-furandicarboxylic acid is produced by: bringing 5-hydroxymethylfurfural into contact with an oxidant in an organic acid solvent in the presence of bromine and a metal catalyst; and allowing 5-hydroxymethylfurfural and the oxidant to react with each other while removing water produced by the reaction.